David Threlfall

Set on a sleeper train travelling from Glasgow to London, a government agency desperately tries to intervene in the rapidly-escalating events onboard.

A close-knit community is sent spinning on its axis following a series of strange and unnatural crimes.

Based on the extraordinary true story of Alec Jeffreys' discovery of DNA fingerprinting and its first use by Detective Chief Superintendent David Baker in catching a double murderer.